Swedrami: I can definitely see them do a timed-exclusive with CP2077 to bring even more people to the light side.
The problem is that they lack proper support for other languages. And ending support for PT not too long ago doesn't look especially good either. So considering that, they are actually regressing instead of expanding. Doing a release like that would thus be a pretty bad idea.
Meanwhile, Steam is happily expanding, got into the large Korean and Chinese market and have forum implementation for games these days. GOG, on the other hand, does nothing, despite not having first-mover advantage. It would need to play catch-up which it isn't doing. So my guess is that either GOG gave up becoming an actual contender or they are more incompetent than I thought.